Pallet changer



FIG. 1 is a front-left perspective view of a pallet changer showing my new design;

FIG. 2 is a front-right perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a right-side view thereof; and,

FIG. 6 is a left side view thereof.

The top and bottom views of the pallet changer are not visible during normal use and form no part of the claimed design. 

CLAIM The ornamental design for a pallet changer, as shown and described. 